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Nathan Goodyear

Effects of Polyunsaturated Fatty Acids in Growth Medium on Lipid Composition and on Phy... - 0 views

www.ncbi.nlm.nih.gov/...PMC321255

PUFA poly unsaturated fatty acids GI dysbiosis bacteria microbiota

shared by Nathan Goodyear on 01 May 12 - No Cached
  • Nathan Goodyear on 01 May 12
     
    PUFA shown to effect GI bacterial balance.  Altering adhesion of lactobacillus to intestinal surface.  Also, lactobacilli species shown to alter PUFA metabolism in GI.  This article reveals the effect that diet can have on GI bacterial balance.
Nathan Goodyear

The endocabbinoid system and the treatment of obesity - 0 views

diabesity.eu/annals.pdf

endocannabinoid endocannabinoid-mediated adiponectin obesity overweight weight-loss CB1

shared by Nathan Goodyear on 19 Mar 12 - No Cached
  • Nathan Goodyear on 19 Mar 12
     
    nice review of CB1 receptors and the role they play in obesity. Endocabbinoid receptors play an important role in the hypothalamus control of metabolism and energy. CB1 is active both centrally and peripherally. Increased CB1 activity increases fat storage; decrease CB1 activity increases fatty acid oxidation through adiponectin.
Nathan Goodyear

Web of Knowledge [v.5.3] - Web of Science - 0 views

cel.webofknowledge.com/full_record.do

DHEA DHEA-S adipose tissue obesity overweight fat

shared by Nathan Goodyear on 20 Mar 12 - No Cached
  • Nathan Goodyear on 20 Mar 12
     
    human study: revealed a decrease in saturated fatty acids, omega-6 in those supplemented with DHEA-S.  DHEA-S was found to improve the metabolic profile of adipose tissue
Nathan Goodyear

The omega-3 index as a risk factor for coronary heart disease - 0 views

www.ajcn.org/...1997S.full

n-3 omega 3 coronary heart disease sudden cardiac death CVD cardiovascular disease heart cardiology heart disease

shared by Nathan Goodyear on 14 Jul 12 - No Cached
  • Nathan Goodyear on 14 Jul 12
     
    Omega-3 fatty acids can be used to predict risk for coronary heart disease death, especially sudden cardiac death.
Nathan Goodyear

Free fatty acids and insulin resistance : Current Opinion in Clinical Nutrition & Metab... - 0 views

journals.lww.com/..._and_insulin_resistance.5.aspx

FFA free fatty acids insulin resistance inflammation obesity nutrition

shared by Nathan Goodyear on 21 Dec 11 - No Cached
  • Nathan Goodyear on 21 Dec 11
     
    FFA excess contributes to inflammation, insulin resistance, and obesity
Nathan Goodyear

Inflammation and insulin resistance 10.1016/j.febslet.2007.11.057 : FEBS Letters | Scie... - 0 views

www.sciencedirect.com/...S0014579307012082

inflammation insulin resistance IR PPAR TNF-alpha IL-6 IL-10 IL-1Beta JNK GLT-4 Resistin adiponectin Gherlin NF-kapppB iNOS lkkb obesity TLR-4

shared by Nathan Goodyear on 10 Jan 12 - No Cached
  • A subsequent study by Yuan et al. showed that Tnf treatment of 3T3L1 adipocytes induces insulin resistance and that this could be prevented by pretreatment of cells with aspirin
  • Activation of the Tnf receptor results in stimulation of NFκB signaling via Ikkb
  • Insulin is a pleiotropic hormone
  • ...25 more annotations...
  • the percentage of macrophages in a given adipose tissue depot is positively correlated with adiposity and adipocyte size
  • Il-10 is an anti-inflammatory cytokine produced by macrophages and lymphocytes
  • Il-10 exerts its anti-inflammatory activity by inhibiting Tnf-induced NFκB activation by reducing IKK activity [38]
  • adipose tissue macrophages are responsible for nearly all adipose tissue Tnf expression and a significant portion of Nos2 and Il6 expression
  • One theory holds that the expansion of adipose tissue leads to adipocyte hypertrophy and hyperplasia and that large adipocytes outstrip the local oxygen supply leading to cell autonomous hypoxia with activation of cellular stress pathways
  • The use of the anti-inflammatory compounds, salicylate and its derivative aspirin, for treating symptoms of T2DM dates back over 100 years
  • elevated levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin (IL-8) have all been reported in various diabetic and insulin resistant states
  • overnutrition and obesity are often accompanied by elevations in tissue and circulating FFA concentrations, and saturated FFAs can directly activate pro-inflammatory responses
  • Adipokines such as resistin, leptin and adiponectin, which are secreted by adipocytes, can also affect inflammation and insulin sensitivity
  • In skeletal muscle insulin promotes glucose uptake by stimulating translocation of the GLUT4 glucose transporter
  • macrophages are also capable of undergoing a phenotypic switch from an M1 state, which was defined as the “classically activated” pro-inflammatory macrophage, to the M2 state or the “alternatively activated” non-inflammatory cell
  • In the liver, insulin inhibits the expression of key gluconeogenic enzymes and, therefore, insulin resistance in liver leads to elevated hepatic glucose production
  • Several inducers of insulin resistance, including FFAs, pro-inflammatory cytokines and oxidative stress, activate the expression of Nos2, the gene that encodes iNOS (reviewed in [33]
  • Adipose tissue insulin signaling results in decreased hormone sensitive lipase activity and this anti-lipolytic effect inhibits free fatty acid (FFA) efflux out of adipocytes.
  • saturated fatty acids are the most potent inducers of this inflammatory response
  • elevated JNK activity in liver, adipose tissue and skeletal muscle of obese insulin resistant mice, and knockout of Jnk1 (Jnk1−/−) leads to amelioration of insulin resistance in high fat diet
  • Adipose tissue from obese mice contains proportionately more M1 macrophages, whereas, lean adipose tissue contains more M2 macrophages, and increased M1 content positively correlates with inflammation, macrophage infiltration and insulin resistance
  • C-reactive protein (CRP)
  • these studies highlight the possibility that increased iNOS activity plays a direct role in the pathogenesis of insulin resistance
  • the important role of Ikkb in the development of obesity and inflammation-induced insulin resistance.
  • It is probable that local concentrations of inflammatory mediators, such as FFAs, Tnf or other cytokines/adipokines contribute to this polarity switch
  • Tnf and other cytokines/chemokines are symptomatic of inflammation, and while they propagate and/or maintain the inflammatory state, they are not the initial cause(s) of inflammation
  • Tlr4, in particular, is stimulated by lipopolysaccharide (LPS), an endotoxin released by gram-negative bacteria
  • Tlr4 belongs to the family of Toll-like receptors that function as pattern recognition receptors that guard against microorganismal infections as part of the innate immune system.
  • Tlr4 stimulation results in the activation of both Ikkb/NFκB and JNK/AP-1 signaling, culminating in the expression and secretion of pro-inflammatory cytokines/chemokines, including, Il1b, IL-6, Tnf, Mcp1, etc. (reviewed in [57
  • Nathan Goodyear on 10 Jan 12
     
    Great review of all the known components in the inflammation, insulin resistance link
Nathan Goodyear

Adipose Tissue Inflammation in Obesity and Metabolic Syndrome - - Satoshi Nishimura - D... - 0 views

www.discoverymedicine.com/...obesity-and-metabolic-syndrome

inflammation obesity metabolic syndrome fat adipose tissue innate immune system humoral

shared by Nathan Goodyear on 21 Dec 11 - No Cached
  • Activation of inflammatory pathways in adipocytes impairs triglyceride storage and increases release of free fatty acids, an excess of which is known to induce insulin resistance in muscle and liver
  • recent studies have shown that large numbers of macrophages infiltrate obese adipose tissue,
  • It has been postulated that a paracrine loop involving free fatty acids and inflammatory cytokines establishes a vicious cycle between adipocytes and macrophages that propagates the inflammation
  • ...5 more annotations...
  • not only does interrupting the accumulation of macrophages within obese adipose tissue suppresses adipose inflammation in various animal models, it also ameliorates systemic insulin resistance and metabolic abnormalities, suggesting macrophages are key effector cells involved in adipose inflammation
  • activation of the leukocyte adhesion cascade, a hallmark of inflammation
  • Thus, obese visceral adipose tissue is clearly a site of chronic inflammation
  • CD8+ T cells within obese adipose tissue induce activation and migration of monocytes/macrophages, and in cooperation with the adipose tissue, they also induce macrophage differentiation. At the same time, obese adipose tissue activates CD8+ T cells, creating a vicious cycle involving CD8+ T cells, macrophages, and obese adipose tissue that propagates local inflammation
  • In obese adipose tissue there is a shift to dominance of CD8+ and TH1 T cells, which appears to propagate inflammation
  • Nathan Goodyear on 21 Dec 11
     
    fascinating read how the immune system and resultant inflammation results in obesity.
Nathan Goodyear

Fatty acid-induced mitochondrial uncoupling in ... [Diabetologia. 2007] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...17712547

FFA free fatty acids mitochondria insulin resistance type II diabetes inflammation obesity adipose tissue adipocytes

shared by Nathan Goodyear on 22 Dec 11 - No Cached
  • Nathan Goodyear on 22 Dec 11
     
    how increase FFA uncouples mitochondria.  Role in development of insulin resistance and type II diabetes
Nathan Goodyear

Effect of omega-3 fatty acids on inten... [Int J Gynaecol Obstet. 2012] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...22261128

Omega-3 n-3 dysmenorrhea menstrual cramps cramps ibuprofen essential fatty acids

shared by Nathan Goodyear on 30 Jul 12 - No Cached
  • Nathan Goodyear on 30 Jul 12
     
    Omega-3 reduced the intensity of menstrual cramps.  Omega-3 reduced the need for rescue ibuprofen.
Nathan Goodyear

Adiponectin translation is increased by the PPARγ agonists pioglitazone and ω... - 0 views

ajpendo.physiology.org/...E480.long

n-3 omega-3 DHA EPA adiponectin PPAR-gamma obesity adipocytes fatty acids

shared by Nathan Goodyear on 13 Jun 12 - No Cached
  • Nathan Goodyear on 13 Jun 12
     
    Omeg-3, DHA and EPA, increased adiponectin production.  In addition, blockade of the PPAR-gamma resulted in a reduction in adiponectin production.  Thus PPAR gamma activation results in adiponectin production by adipocytes.
Nathan Goodyear

JAMA Network | JAMA: The Journal of the American Medical Association | Association of D... - 0 views

jama.jamanetwork.com/article.aspx

breast cancer fat low fat diet fatty acids dietary

shared by Nathan Goodyear on 13 Jun 12 - No Cached
  • Nathan Goodyear on 13 Jun 12
     
    Nurses' Health study analysis finds no increased breast cancer risk with low fat diet.  This was a meta-analysis of almost 90,000 women.
Nathan Goodyear

n−3 Polyunsaturated fatty acids, inflammation, and inflammatory diseases - 0 views

ajcn.nutrition.org/...S1505.full

inflammation n-3 omega 3 EFA essential fatty acids disease

shared by Nathan Goodyear on 05 Sep 13 - No Cached
  • Nathan Goodyear on 05 Sep 13
     
    Omega 3 and inflammation.  Good review of the biochemistry of inflammation and the interaction of omega-3 as a disruptor of inflammation.
Nathan Goodyear

Annals of Internal Medicine | Association of Dietary, Circulating, and Supplement Fatty... - 0 views

annals.org/article.aspx

cardiovascular disease saturated fats dietary fatty acids nutrition

shared by Nathan Goodyear on 18 Mar 14 - No Cached
  • Nathan Goodyear on 18 Mar 14
     
    Meta-analysis finds no improvement with cardiovascular risk from low saturated fats.  This is not the first study to show this.  The weakness of this is that this study is a meta-analysis.  This needs to be taken in context and applied individually.  The take home is that universal restriction of saturated fats is not the holy grail of nutrition.
Nathan Goodyear

Oxidant stress, ant... [Prostaglandins Leukot Essent Fatty Acids. 1997] - PubMed - NCBI - 0 views

www.ncbi.nlm.nih.gov/...9089797

SLE lupus EPA DHA n-3 omega 3 omega-3 fish oil fish oil fatty acids

shared by Nathan Goodyear on 30 Oct 13 - No Cached
  • Nathan Goodyear on 30 Oct 13
     
    low EPA and DHA found in patients with Lupus.  The authors of this article went so far as to say that lipid peroxides, NO, and anti-oxidants should be a part of the work up for patients with Lupus.
Nathan Goodyear

Hypometabolism as a therapeutic target in Alzheimer's disease - 0 views

www.ncbi.nlm.nih.gov/...PMC2604900

cocconut oil brain Alzheimer's disease ketones

shared by Nathan Goodyear on 11 Nov 13 - No Cached
  • Nathan Goodyear on 11 Nov 13
     
    Medium chain fatty acids, such as cocconut oil, benefit brain with glucose hypometabolism problems such as in Alzheimer's disease.
Nathan Goodyear

Dietary Strategy to Repair Plasma Membrane After Brain Trauma - 0 views

nnr.sagepub.com/...75.long

curcumin DHA TBI traumatic brain injury brain injury neuroinflammation BDNF brain derived neurotrophic factor brain

shared by Nathan Goodyear on 31 Aug 15 - No Cached
  • concussive brain injury is a major cause of neuropsychological disability in spite of no obvious neuronal death
  • TBI elicits oxidative damage to plasma membrane phospholipids
  • DHA is the most abundant polyunsaturated fatty acid (PUFA) in the brain, where the DHA-containing phospholipids contribute to plasma membrane biogenesis and receptor signaling
  • ...10 more annotations...
  • curcumin has potent anti-inflammatory and antioxidant activities that can function to reduce oxidative damage and cognitive deficits associated with neurological disorders
  • Curcumin provided in the diet before TBI can reduce oxidative damage and counteract TBI-related cognitive dysfunction
  • Our previous study indicated that n-3 fatty acids supplemented in the diet counteracted learning disability after TBI
  • curcumin contributes to enhance the effects of DHA on TBI by promoting phosphorylation of the BDNF receptor TrkB in the hippocampus
  • previous evidence indicates that curcumin10 and DHA5 counteract TBI-related learning disability by involving BDNF
  • Our findings indicate that curcumin counteracted the TBI-related reduction in n-3 DPA.
  • curcumin may promote the conversion of n-3 DPA to DHA
  • the combination of both nutrients has been reported to produce anti-inflammatory action
  • the enhanced actions of curcumin and DHA in reducing cholesterol levels could be interpreted as preservation of levels of phospholipids in the plasma membrane
  • curcumin and DHA may contribute to reduce inflammation associated with the action of cholesterol in the pathology of TBI.
  • Nathan Goodyear on 31 Aug 15
     
    Curcumin and DHA shown to protect against TBI through a reduction in inflammation and maintenance of brain phospholipid membranes.  BDNF is increases also.
Nathan Goodyear

Parental Dietary Fat Intake Alters Offspring Microbiome and Immunity - 0 views

www.jimmunol.org/...3200.short

gut gut flora gut microbiome gut microbiota Fats diet nutrition lard legacy LPS

shared by Nathan Goodyear on 05 Jul 15 - No Cached
  • Nathan Goodyear on 05 Jul 15
     
    What legacy do you leave your children?  Study finds that the "lard legacy" is one many leave their children.  Adults with high fatty acid profile, found in SAD, but this leaves alter gut microbiome in their children.
Nathan Goodyear

Dietary omega-3 fatty acid supplementation increases the rate of muscle protein synthes... - 0 views

www.ajcn.org/...402.abstract

omega-3

shared by Nathan Goodyear on 25 Mar 11 - No Cached
  • Omega-3 fatty acids stimulate muscle protein synthesis in older adults
  • Nathan Goodyear on 25 Mar 11
     
    Omega-3 shown to increase muscle growth
Nathan Goodyear

Leptin stimulates fatty-acid oxidation by activati... [Nature. 2002] - PubMed result - 0 views

www.ncbi.nlm.nih.gov/...11797013

leptin fat obesity

shared by Nathan Goodyear on 10 Mar 11 - No Cached
  • Leptin is a hormone secreted by adipocytes that plays a pivotal role in regulating food intake, energy expenditure and neuroendocrine function. Leptin stimulates the oxidation of fatty acids and the uptake of glucose, and prevents the accumulation of lipids in nonadipose tissues, which can lead to functional impairments known as "lipotoxicity"
  • Nathan Goodyear on 10 Mar 11
     
    Leptin and fat accumulation called "lipotoxicity"
Nathan Goodyear

Mechanisms of fatty acid-induced inhibition of glucose uptake. - 0 views

www.ncbi.nlm.nih.gov/...PMC294452

saturaged fat fatty acids insulin glucose obesity overweight

shared by Nathan Goodyear on 27 May 11 - No Cached
  • Nathan Goodyear on 27 May 11
     
    saturated fat with glucose intake promotes triglyceride synthesis by insulin instead of glucose uptake into tissue to make energy
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